Osbert Peake, 1st Viscount Ingleby, PC (30 December 1897 – 11 October 1966) was a British Conservative Party politician.

In April 1939, he was appointed as Parliamentary Under-Secretary of State for the Home Department and in October 1944 he became Financial Secretary to the Treasury.

Whilst in opposition, he became a leading spokesman for the Beveridge social reform proposals, and on the Conservatives return to power in 1951 he became Minister of National Insurance (Minister of Pensions and National Insurance from September 1953 and a member of the Cabinet from October 1954).

In December 1955, shortly after Anthony Eden succeeded Winston Churchill as Prime Minister in April, Peake resigned from the government.

They had five children:[1][2] Peake became a Privy Counsellor in 1943 and was raised to the peerage on 17 January 1956 as Viscount Ingleby, of Snilesworth in the North Riding of the County of York.